EP1350930A1 - Pompe à déplacement variable et dispositif de contrôle - Google Patents

Pompe à déplacement variable et dispositif de contrôle Download PDF

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Publication number
EP1350930A1
EP1350930A1 EP03252133A EP03252133A EP1350930A1 EP 1350930 A1 EP1350930 A1 EP 1350930A1 EP 03252133 A EP03252133 A EP 03252133A EP 03252133 A EP03252133 A EP 03252133A EP 1350930 A1 EP1350930 A1 EP 1350930A1
Authority
EP
European Patent Office
Prior art keywords
pressure
valve
pump
engine
solenoid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03252133A
Other languages
German (de)
English (en)
Other versions
EP1350930B1 (fr
EP1350930B2 (fr
Inventor
Douglas Hunter
Dennis Koenig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SLW Automotive Inc
Original Assignee
BorgWarner Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=29739609&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1350930(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BorgWarner Inc filed Critical BorgWarner Inc
Priority to DE60317399.3T priority Critical patent/DE60317399T3/de
Priority to EP07075612A priority patent/EP1873363B1/fr
Publication of EP1350930A1 publication Critical patent/EP1350930A1/fr
Publication of EP1350930B1 publication Critical patent/EP1350930B1/fr
Application granted granted Critical
Publication of EP1350930B2 publication Critical patent/EP1350930B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/01—Load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/05—Speed
    • F04C2270/052—Speed angular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/18—Pressure

Definitions

  • the present invention relates to the control of the output of a variable displacement pump. More specifically, the present invention relates to control of an oil pump for oil pressure control in an internal combustion engine, transmission or the like.
  • a control system for a hydraulic variable displacement vane-type pump wherein input from an engine control unit actuates a solenoid for controlling the engine oil pressure to the desired level under any operating conditions.
  • a method of controlling a variable displacement pump 10 for an engine is provided.
  • the solenoid 26 is normally, or is defaulted to, the closed position when no power is supplied to the solenoid 26.
  • the solenoid 26 When the solenoid 26 is in the closed position there will be high fluid displacement by the pump 10.
  • an emergency event such as when there is an electrical failure, the solenoid 26 will move to its default position so the engine oil pressure will remain high and that the vehicle can continue operating until it can serviced.
  • the solenoid in a closed position the system could also be configured so that there is fluid displacement with the pump 10.
  • the pump is a vane-type variable displacement pump, as set forth in co-pending application Serial No. 10/021,566, filed December 12, 2000, the specification of which is incorporated by reference herein.
  • the pump is designed for an engine lubrication circuit.
  • the pump is generally shown at 10.
  • the pump 10 may be a vane pump which has the displacement varied by movement of an eccentric ring 11. It is also possible to incorporate other types of pumps, in which the stroke or displacement may be adjusted during operation.
  • a flow control valve 12 is used to mechanically vary the displacement of a pump 10, by moving the eccentric ring 11, based on an engine pilot pressure 14 acting on the flow control valve 12 which controls the volume of oil in each control chamber on each side of the eccentric ring 11.
  • a compression spring 16 acts against a pilot pressure 14 for maintaining some pressure on the flow control valve 12 and to provide a return pressure in absence of the pilot pressure 14.
  • the flow control valve 12 in this particular embodiment is a spool valve such as a three-way spool valve.
  • the flow control valve 12 can be a spool valve of any type of configuration.
  • the flow control valve 12 does not necessarily need to be a spool valve at all, as will be seen in Figure 6.
  • the compression spring 16 gives the spool portion of the valve 12 travel distance that is proportional to the differential between the actual pressure of the system and the desired or target system pressure.
  • the differential pressure is variable by way of a valve 18, which controls the amount of pressure acting on the variable target piston 20 against spring 22 for varying the amount of spring 16 pressure on valve 12.
  • An engine control unit (ECU) 24 monitors the engine conditions and parameters such as temperature, speed and engine load. In this embodiment, the engine control unit 24 monitors the engine conditions pressure, speed, and engine load and then selects a desired oil pressure, and sends the appropriate current to the solenoid 26 acting on valve 18. This varies the pressure acting on the piston 20, changing its position and thereby reducing or increasing target pressure, depending upon the desired engine oil pressure target.
  • the flow control valve 12 then regulates the pump's 10 eccentric ring 11 to maintain target pressure.
  • valve 112a includes a closed center valve portion 112b.
  • the main operating difference is the use of a pressure reducing and regulating valve 128.
  • the regulating valve 128 creates a fixed input pressure for the solenoid valve 118 in that the pressure, which in Figure 1 was taken from the discharge port of the pump 10 into the solenoid control valve 18, is now at a constant pressure and, therefore, provides better control of the variable target pressure acting on piston 120. This ultimately provides improved control over the desired movement of the eccentric ring 111 of the pump 110.
  • Fig. 2a operates in a similar manner as Fig. 2.
  • the main difference between Fig. 2 and Fig. 2a is that the pressure reducing and regulating valve 128 of Fig. 2a creates a fixed target pressure that acts directly on the piston 120.
  • the solenoid 126 opens or closes to further adjust the pressure of fluid acting on the piston 120.
  • the solenoid 126 moves the valve 118a to the closed position there is an increase in variable target pressure.
  • the solenoid 126 moves the valve 118a to the open position the variable target pressure will decrease as the fluid moves to the sump with less resistance.
  • unreduced pressure is fed to the spool valve 112A before pressure the pressure reducing and regulating valve 128 after the filter.
  • this embodiment is also a passive system for controlling oil flow and oil pressure since an engine control unit 124 controls the solenoid 126 for positioning the piston 120, however, the engine control unit 124 does not directly sense oil pressure.
  • the solenoid 326 directly controls the movement of the variable target piston 320.
  • the engine control unit 324 is connected to the solenoid 326 and controls the actuation of the solenoid.
  • the configuration of this embodiment i.e., the solenoid acting directly on the variable target piston 320
  • this embodiment includes a solenoid 426 attached to the flow control spool valve 412 directly, to regulate the stroke or de-stroke conditions of the pump 410.
  • the solenoid 426 is connected directly to the engine control unit 424.
  • the engine control unit 424 samples the pilot pressure from a pressure transducer in the engine circuit in order to make the proper calculations as to the best spool position based on the current actual and target pressures.
  • Return spring 416 provides the return pressure for adjusting the flow control spool valve 412 in absence of solenoid 426 input, and allows for predetermined functions of spool position versus current.
  • FIG. 6 like items referenced in Figure 5 are similarly designated with reference numerals differing by 100.
  • a very simple control mechanism is used by the control solenoid 526 moving a valve 512A for controlling the de-stroke actuator of the pump 510.
  • the solenoid 526 adjusts the pressure acting on the large piston which pushes against the discharge pressure acting on the small piston on the opposite side.
  • An on-stroke return spring is provided for balancing the eccentric control ring against control inputs which can also work alone (as shown).
  • the engine control unit 524 samples the pilot pressure from a pressure transducer in the engine circuit in order to make the proper calculations as to the best valve 512A position.
  • Figure 7 is another embodiment wherein engine control unit 624 directly controls a solenoid 626 which acts directly on either the actuating piston for the eccentric ring or directly on the eccentric ring. This allows direct control of the displacement of the pump 610 based on ECU 624 monitoring of the pilot pressure of the oil pressure circuit.
  • Figure 8 illustrates a further embodiment wherein the solenoid 726 directly actuates the spool flow control valve 712.
  • the ECU 724 is monitoring the engine oil circuit pressure and adjusting the solenoid in accordance with the necessary engine oil pressure, as calculated by the ECU.
  • pressure from the discharge is reduced by the solenoid valve and used to bias the position of the flow control spool valve 712 against the spring for varying the displacement of the pump.
  • Flow across the solenoid can be directed to the inlet port, as shown of the vane pump 710, but can also be drained to the sump.
  • Figures 1 through 4 are passive systems which allow the ECU to monitor engine conditions and provide a pressure target to the pump system, but the pump system is self-regulated to the pressure target by mechanical and hydraulic controls.
  • Figures 5 through 8 provide active control of the oil pressure by the ECU. In these embodiments, the ECU monitors the oil pressure and actively adjusts the system on a real time basis to control oil pressure in the engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Rotary Pumps (AREA)
EP03252133.8A 2002-04-03 2003-04-03 Pompe à déplacement variable et dispositif de contrôle Expired - Lifetime EP1350930B2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE60317399.3T DE60317399T3 (de) 2002-04-03 2003-04-03 Regelbare Verdrängerpump sowie Steursystem dafür
EP07075612A EP1873363B1 (fr) 2002-04-03 2003-04-03 Pompe à cylindrée variable et son contrôle

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US36982902P 2002-04-03 2002-04-03
US369829P 2002-04-03
US10/406,575 US7018178B2 (en) 2002-04-03 2003-04-03 Variable displacement pump and control therefore for supplying lubricant to an engine
US406575P 2003-04-03

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP07075612A Division EP1873363B1 (fr) 2002-04-03 2003-04-03 Pompe à cylindrée variable et son contrôle
EP07075612A Division-Into EP1873363B1 (fr) 2002-04-03 2003-04-03 Pompe à cylindrée variable et son contrôle

Publications (3)

Publication Number Publication Date
EP1350930A1 true EP1350930A1 (fr) 2003-10-08
EP1350930B1 EP1350930B1 (fr) 2007-11-14
EP1350930B2 EP1350930B2 (fr) 2016-01-27

Family

ID=29739609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03252133.8A Expired - Lifetime EP1350930B2 (fr) 2002-04-03 2003-04-03 Pompe à déplacement variable et dispositif de contrôle

Country Status (4)

Country Link
US (2) US7018178B2 (fr)
EP (1) EP1350930B2 (fr)
JP (2) JP2004251267A (fr)
DE (2) DE60333503D1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1522732A2 (fr) * 2003-10-10 2005-04-13 BorgWarner, Inc. Pompe à palette à débit variable avec un régulateur de limite variable
US6896489B2 (en) 2000-12-12 2005-05-24 Borgwarner Inc. Variable displacement vane pump with variable target regulator
EP1790855A2 (fr) * 2005-11-23 2007-05-30 Borgwarner, Inc. Système de pompe hydraulique à débit et pression variables
WO2011107156A1 (fr) * 2010-03-05 2011-09-09 Pierburg Pump Technology Gmbh Pompe à lubrifiant à débit variable
EP2558694A1 (fr) * 2010-04-15 2013-02-20 International Engine Intellectual Property Company, LLC Moteur à jets de refroidissement de piston commandés électroniquement et procédé pour sa commande
EP2014919B1 (fr) 2007-07-13 2017-01-04 Schwäbische Hüttenwerke Automotive GmbH Soupape de réglage pour le réglage du volume d'alimentation d'une pompe volumétrique
WO2018068841A1 (fr) * 2016-10-12 2018-04-19 Pierburg Pump Technology Gmbh Pompe à lubrifiant mécanique variable pour automobile

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ATE488697T1 (de) * 2003-04-16 2010-12-15 O M P Officine Mazzocco Pagnoni S R L Öl- und vakuumpumpenaggregat für eine fahrzeugbrennkraftmaschine
JP4146312B2 (ja) * 2003-07-25 2008-09-10 ユニシア ジェーケーシー ステアリングシステム株式会社 可変容量形ポンプ
US9181803B2 (en) 2004-12-22 2015-11-10 Magna Powertrain Inc. Vane pump with multiple control chambers
EP1828610B1 (fr) 2004-12-22 2016-12-21 Magna Powertrain Inc. Pompe à palettes de capacité variable comprenant des chambres de commande doubles
US20060198736A1 (en) * 2005-03-01 2006-09-07 Caterpillar Inc. Pump control system for variable displacement pump
FR2903456B1 (fr) * 2006-07-07 2008-10-17 Siemens Automotive Hydraulics Pompe transfert a plusieurs pistons
EP2059680A4 (fr) * 2006-09-08 2014-04-09 Slw Automotive Inc Système de régulation de pression à deux étages pour pompes hydrauliques à cylindrée variable
CN101517236B (zh) * 2006-09-26 2012-07-04 麦格纳动力系有限公司 用于泵输出压力控制的控制***与方法
DE112008000978T5 (de) * 2007-05-04 2010-06-17 Borgwarner Inc., Auburn Hills Hydraulische Pumpe mit variablem Durchfluss und Druck und verbesserter elektrischer Steuerung mit offenem Regelkreis
US7815016B2 (en) * 2008-02-25 2010-10-19 Gm Global Technology Operations, Inc. Lubrication control system for automatic transmissions
CA2679776A1 (fr) 2008-10-08 2010-04-08 Magna Powertrain Inc. Pompe a ailettes, a commande directe de debit
CA2742148C (fr) * 2008-11-07 2017-05-30 Stt Technologies Inc., A Joint Venture Of Magna Powertrain Inc. And Shw Gmbh Pompe a huile electrique integree entierement immergee
US8182238B2 (en) * 2009-04-03 2012-05-22 Ford Global Technologies, Llc Variable displacement transmission pump control
DE112010001701B4 (de) 2009-04-21 2014-06-18 Slw Automotive Inc. Flügelzellenpumpe mit verbessertem Rotor und Drehschiebererweiterungsring
US8696326B2 (en) * 2009-05-14 2014-04-15 Magna Powertrain Inc. Integrated electrical auxiliary oil pump
JP2011080430A (ja) * 2009-10-08 2011-04-21 Hitachi Automotive Systems Ltd 制御弁と該制御弁が用いられた可変容量形ポンプ、並びに内燃機関の油圧回路
US8427806B2 (en) * 2009-12-29 2013-04-23 GM Global Technology Operations LLC Control system and method for transmission solenoids
GB2480474B (en) * 2010-05-20 2016-10-05 Ford Global Tech Llc An oil supply system for an engine
GB2486195A (en) * 2010-12-06 2012-06-13 Gm Global Tech Operations Inc Method of Operating an I.C. Engine Variable Displacement Oil Pump by Measurement of Metal Temperature
US9803637B2 (en) 2011-07-14 2017-10-31 Ford Global Technologies, Llc Variable displacement hydraulic pump control
JP6154386B2 (ja) 2012-09-07 2017-06-28 日立オートモティブシステムズ株式会社 可変容量形オイルポンプ及びこれを用いたオイル供給システム
US9109597B2 (en) 2013-01-15 2015-08-18 Stackpole International Engineered Products Ltd Variable displacement pump with multiple pressure chambers where a circumferential extent of a first portion of a first chamber is greater than a second portion
US9353655B2 (en) * 2013-03-08 2016-05-31 GM Global Technology Operations LLC Oil pump control systems and methods for noise minimization
CN103306332B (zh) * 2013-06-24 2019-03-01 上海三一重机股份有限公司 一种设定挖掘机主泵流量的方法
DE102013216395B4 (de) * 2013-08-19 2019-01-17 Danfoss Power Solutions a.s. Steuereinrichtung für hydraulische verstellpumpen und verstellpumpe mit einer steuereinrichtung
KR101505775B1 (ko) 2014-04-15 2015-03-26 명화공업주식회사 하나의 챔버와 2방 밸브를 이용한 2단 가변 오일펌프
CN107949782B (zh) * 2015-09-10 2022-01-14 康明斯过滤Ip公司 基于介电和粘度传感器识别粘度等级和新油状态
US10392977B2 (en) 2016-02-11 2019-08-27 Slw Automotive Inc. Automotive lubricant pumping system with two piece relief valve
DE102017001318B4 (de) 2017-02-11 2022-02-24 Thomas Magnete Gmbh Druckregelventil für eine Verstellpumpe
JP6469155B2 (ja) * 2017-03-22 2019-02-13 本田技研工業株式会社 流体圧回路
DE102017112700A1 (de) * 2017-06-08 2018-12-13 Schwäbische Hüttenwerke Automotive GmbH Steuerventil

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EP1522732A3 (fr) * 2003-10-10 2009-12-30 Borgwarner, Inc. Pompe à palette à débit variable avec un régulateur de limite variable
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CN102844570B (zh) * 2010-03-05 2016-01-20 皮尔伯格泵技术有限责任公司 可变排量的润滑泵
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US20030231965A1 (en) 2003-12-18
US20060127229A1 (en) 2006-06-15
US7018178B2 (en) 2006-03-28
DE60317399D1 (de) 2007-12-27
DE60333503D1 (de) 2010-09-02
JP2010014120A (ja) 2010-01-21
EP1350930B2 (fr) 2016-01-27
US7396214B2 (en) 2008-07-08
DE60317399T3 (de) 2016-04-28
JP2004251267A (ja) 2004-09-09
JP5280318B2 (ja) 2013-09-04
DE60317399T2 (de) 2008-10-16

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